How does the Craigslist housing scam work with real bank accounts?

Afternoon, Fantastic article on the Craigslist to Airbnb scam. Through this and a number of other sites and resources (e.g scamwarners, google reverse image) I realized I was embroiled in this scam for a long-term rental in Rome. I have since kept in contact with the supposed owner, playing along with their idea. They have wasted my time so I wanted to waste theirs. They have now sent me their private bank account details. An IBAN tracking tool has validated this as a genuine bank account in Italy. It checks with the name they use on the fake email address. My question is how do they do this? I thought it might be a useful addition to your article as it is not only through the clone Airbnb site that money is solicited. The sophistication of the scam allows them also to solicit money directly into a  "real" bank account. Best Regards Edward